Date
02 Jun 1988, 10:30 am - 3:00 pm
Abstract
Any fault in the foundation of a dam presents a problem which has to be tackled in the proper way considering many aspects. This paper deals with such a foundation problem faced at Upper Aliyar Dam in South India in the shape of a weak zone. Several alternatives were thought of for tackling the weak zone. Ultimately a simple concrete plug with cut-offs was adopted considering the limited working season available and the fairly good in-situ compressive strength of the weak material. This was in preference to a raft foundation or a massive arch. The methods adopted for tackling the problem have been elaborated. The performance of the dam during the past more than 20 years has been quite satisfactory considering that no leakage or settlement has occurred after the treatment of weak zone. The conclusions reached at the end provide significant points in the field of geotechnical engineering.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Rupchard, K. V., "Problems and Behaviour of a Dam Founded on a Weak Zone" (1988). International Conference on Case Histories in Geotechnical Engineering. 42.
https://scholarsmine.mst.edu/icchge/2icchge/2icchge-session3/42
Problems and Behaviour of a Dam Founded on a Weak Zone
Any fault in the foundation of a dam presents a problem which has to be tackled in the proper way considering many aspects. This paper deals with such a foundation problem faced at Upper Aliyar Dam in South India in the shape of a weak zone. Several alternatives were thought of for tackling the weak zone. Ultimately a simple concrete plug with cut-offs was adopted considering the limited working season available and the fairly good in-situ compressive strength of the weak material. This was in preference to a raft foundation or a massive arch. The methods adopted for tackling the problem have been elaborated. The performance of the dam during the past more than 20 years has been quite satisfactory considering that no leakage or settlement has occurred after the treatment of weak zone. The conclusions reached at the end provide significant points in the field of geotechnical engineering.
